/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements.  See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License.  You may obtain a copy of the License at
*
*     http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/

package org.apache.poi.hssf.record.formula.functions;

/**
 * Implementation of Excel function SUMXMY2()<p/>
 * 
 * Calculates the sum of squares of differences between two arrays of the same size.<br/>
 * <b>Syntax</b>:<br/>
 * <b>SUMXMY2</b>(<b>arrayX</b>, <b>arrayY</b>)<p/>
 * 
 * result = &Sigma;<sub>i: 0..n</sub>(x<sub>i</sub>-y<sub>i</sub>)<sup>2</sup>
 * 
 * @author Amol S. Deshmukh &lt; amolweb at ya hoo dot com &gt; 
 */
public final class Sumxmy2 extends XYNumericFunction {

    protected double evaluate(double[] xArray, double[] yArray) {
    	return MathX.sumxmy2(xArray, yArray);
    }
}
